Home / 475,288.20-712,932.84-142,864.20

Finding the Fourth Proportional to 475,288.20, 712,932.84 and 142,864.20

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Solution

The fourth proportional to 475,288.20, 712,932.84 and 142,864.20 is: 214,296.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,288.20 : 712,932.84 = 142,864.20 : x
  2. Step 2: Convert to fraction form
    475,288.20/712,932.84 = 142,864.20/x
  3. Step 3: Cross multiply
    475,288.20x = 712,932.84 × 142,864.20
  4. Step 4: Simplify right side
    475,288.20x = 101,852,579,840.33
  5. Step 5: Solve for x
    x = 101,852,579,840.33/475,288.20
  6. Step 6: Final answer
    x = 214,296.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.